{"action":"Upgrade symfony/symfony to 5.4.52 or later.","affected":[{"fixed":"5.4.52","introduced":"0"},{"fixed":"6.4.40","introduced":"6.0.0"},{"fixed":"7.4.12","introduced":"7.0.0"},{"fixed":"8.0.12","introduced":"8.0.0"}],"component":"symfony/symfony","cve_ids":["CVE-2026-45068"],"ecosystem":"Packagist","epss":0.00524,"exploited":false,"fixed_versions":["5.4.52","6.4.40","7.4.12","8.0.12"],"ghsa_id":"GHSA-xx3c-qf5g-hc39","id":"tcs_01M5KFBEWECBEKV54R2FCQK8K9","modified_at":"2026-09-10T03:51:07.456855550Z","published_at":"2026-05-27T20:46:05Z","references":["https://osv.dev/vulnerability/GHSA-xx3c-qf5g-hc39","https://github.com/symfony/symfony/security/advisories/GHSA-xx3c-qf5g-hc39","https://github.com/symfony/symfony/commit/c45144862dc289d03952f41f6078174089a3afc6","https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/mailer/CVE-2026-45068.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45068.yaml","https://github.com/symfony/symfony","https://symfony.com/cve-2026-45068"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-xx3c-qf5g-hc39#Packagist/symfony/symfony","url":"https://osv.dev/vulnerability/GHSA-xx3c-qf5g-hc39"}],"summary":"Symfony has an Argument Injection in SendmailTransport via Dash-Prefixed Recipient Address"}